Egypt. Alexandria. Aelius, as Caesar, 136-138. Hemidrachm (Bronze, 29.01 mm, 14.49 g). Dated RY 2 (= 137). Λ ΑΙΛΙΟC ΚΑΙCΑΡ Bare-headed and draped bust right. Rev. [ΔΗΜ EΞΟΥC - ΥΠΑΤ Β] Omonoia seated left, holding patera in her right hand and a cornucopiae in her left; [ΟΜΟΝΟΙΑ]. Dattari-Savio 2077. RPC III, 6234. Geissen 1273. Emmett 1352. Good Fine. Ex Numismatik Lanz 4-5. 06.1999, lot 626. Except on the obolus, all reverse of the Alexandrian series, so also on this rare Hemidrachm is repeated in the legend the attribution to Aelius of tribunician power and his second consulship, thus dating the coin according to the Roman calendar: the only exception in Alexandrian coinage.